/*
* Conditions Of Use 
* 
* This software was developed by employees of the National Institute of
* Standards and Technology (NIST), an agency of the Federal Government.
* Pursuant to title 15 Untied States Code Section 105, works of NIST
* employees are not subject to copyright protection in the United States
* and are considered to be in the public domain.  As a result, a formal
* license is not needed to use the software.
* 
* This software is provided by NIST as a service and is expressly
* provided "AS IS."  NIST MAKES NO WARRANTY OF ANY KIND, EXPRESS, IMPLIED
* OR STATUTORY, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTY OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT
* AND DATA ACCURACY.  NIST does not warrant or make any representations
* regarding the use of the software or the results thereof, including but
* not limited to the correctness, accuracy, reliability or usefulness of
* the software.
* 
* Permission to use this software is contingent upon your acceptance
* of the terms of this agreement
*  
* .
* 
*/
/*******************************************************************************
* Product of NIST/ITL Advanced Networking Technologies Division (ANTD).        *
*******************************************************************************/
package gov.nist.javax.sip.header;
import gov.nist.core.*;

/**
 * Credentials  that are used in authentication and authorization headers.
 * @author M. Ranganathan
 * @version 1.2 $Revision: 1.6 $ $Date: 2006/11/01 02:22:55 $
 * @since 1.1
 */
public class Credentials extends SIPObject {

	/**
	 * Comment for <code>serialVersionUID</code>
	 */
	private static final long serialVersionUID = -6335592791505451524L;
	
	private static String DOMAIN = ParameterNames.DOMAIN;
	private static String REALM = ParameterNames.REALM;
	private static String OPAQUE = ParameterNames.OPAQUE;	
	private static String RESPONSE = ParameterNames.RESPONSE;
	private static String URI = ParameterNames.URI;
	private static String NONCE = ParameterNames.NONCE;
	private static String CNONCE = ParameterNames.CNONCE;
	private static String USERNAME = ParameterNames.USERNAME;

	protected String scheme;

	/**
	 * parameters list.
	 */
	protected NameValueList parameters;

	/**
	 * Default constructor
	 */
	public Credentials() {
		parameters = new NameValueList();
		parameters.setSeparator(COMMA);
	}

	/**
	 * get the parameters list.
	 * @return NameValueList
	 */
	public NameValueList getCredentials() {
		return parameters;
	}

	/**
	 * get the scheme field.
	 * @return String.
	 */
	public String getScheme() {
		return scheme;
	}

	/**
	 * Set the scheme member
	 * @param s String to set
	 */
	public void setScheme(String s) {
		scheme = s;
	}

	/**
	 * Set the parameters member
	 * @param c NameValueList to set.
	 */
	public void setCredentials(NameValueList c) {
		parameters = c;
	}

	public String encode() {
		String retval = scheme;
		if (!parameters.isEmpty()) {
			retval += SP + parameters.encode();
		}
		return retval;
	}

	/*public void setCredential(NameValue nameValue) {
		if (nameValue.getName().compareToIgnoreCase(URI) == 0)
			nameValue.setQuotedValue();
		else if (nameValue.getName().compareToIgnoreCase(NONCE) == 0)
			nameValue.setQuotedValue();
		else if (nameValue.getName().compareToIgnoreCase(REALM) == 0)
			nameValue.setQuotedValue();
		else if (nameValue.getName().compareToIgnoreCase(CNONCE) == 0)
			nameValue.setQuotedValue();
		else if (nameValue.getName().compareToIgnoreCase(RESPONSE) == 0)
			nameValue.setQuotedValue();
		else if (nameValue.getName().compareToIgnoreCase(OPAQUE) == 0)
			nameValue.setQuotedValue();
		else if (nameValue.getName().compareToIgnoreCase(USERNAME) == 0)
			nameValue.setQuotedValue();
		else if (nameValue.getName().compareToIgnoreCase(DOMAIN) == 0)
			nameValue.setQuotedValue();
		parameters.set(nameValue);
	}*/

	public Object clone() {
		Credentials retval = (Credentials) super.clone();
		if (this.parameters != null)
			retval.parameters = (NameValueList) this.parameters.clone();
		return retval;
	}
}
